:root{--navy:#14213d;--navy2:#1f3160;--gold:#e0a526;--bg:#f6f5f1;--card:#fff;--ink:#1c1c1c;--muted:#5f6470;--ok:#15803d;--bad:#b91c1c;--line:#e3e1da;--r:14px}
*{box-sizing:border-box}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--navy2)}
.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--navy);color:#fff}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;white-space:nowrap}
.logo{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--gold);color:var(--navy);font-weight:800}
.progress-wrap{flex:1;height:8px;background:rgba(255,255,255,.18);border-radius:8px;overflow:hidden;max-width:420px;margin-left:auto}
.progress{height:100%;width:0;background:var(--gold);transition:width .4s}
.who{font-size:14px;opacity:.85;white-space:nowrap}
main{max-width:860px;margin:0 auto;padding:24px 18px 60px}
.foot{text-align:center;font-size:12px;color:var(--muted);padding:20px}
h1{font-size:30px;line-height:1.2;margin:.2em 0 .3em;color:var(--navy)}
h2{color:var(--navy);margin:1.2em 0 .4em}
h3{color:var(--navy2)}
.lead{font-size:18px;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;margin:16px 0;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border:0}
.hero h1{color:#fff}.hero .lead{color:#d6dbea}
.btn{display:inline-block;border:0;border-radius:10px;padding:12px 20px;font:inherit;font-weight:600;cursor:pointer;background:var(--navy);color:#fff;text-decoration:none}
.btn.gold{background:var(--gold);color:var(--navy)}
.btn.ghost{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
label{display:block;font-weight:600;margin:12px 0 4px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #c9c6bd;border-radius:9px;font:inherit;background:#fff}
textarea{min-height:80px}
.lessons{display:grid;gap:12px}
.lesson-item{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none;color:inherit}
.lesson-item .num{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#eceae3;font-weight:700;flex:none}
.lesson-item.done .num{background:var(--ok);color:#fff}
.lesson-item.locked{opacity:.5;pointer-events:none}
.lesson-item .meta{font-size:13px;color:var(--muted)}
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.person{display:flex;gap:12px;padding:14px;border-radius:12px;background:#faf9f6;border:1px solid var(--line)}
.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;flex:none;font-size:18px}
.scene .line{display:flex;gap:12px;margin:12px 0;align-items:flex-start}
.bubble{background:#f1efe9;border-radius:4px 14px 14px 14px;padding:10px 14px;max-width:620px}
.bubble b{display:block;font-size:13px;margin-bottom:2px}
.options{display:grid;gap:10px;margin-top:10px}
.opt{text-align:left;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;background:#fff;font:inherit;cursor:pointer}
.opt:hover{border-color:var(--navy2)}
.opt.right{border-color:var(--ok);background:#ecfdf3}
.opt.wrong{border-color:var(--bad);background:#fef2f2}
.opt.sel{border-color:var(--navy2);background:#eef2ff}
.feedback{margin-top:10px;padding:10px 14px;border-radius:10px;font-size:15px}
.feedback.ok{background:#ecfdf3;color:#14532d}.feedback.no{background:#fef2f2;color:#7f1d1d}
.flip{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}
.fcard{min-height:130px;border-radius:12px;padding:16px;cursor:pointer;background:var(--navy2);color:#fff;font-weight:600;display:flex;align-items:center;justify-content:center;text-align:center;transition:background .2s}
.fcard.open{background:#fff8e6;color:var(--ink);font-weight:400;border:1.5px solid var(--gold);font-size:15px}
.hint{font-size:13px;color:var(--muted)}
.sort-item{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin:8px 0;background:#fff}
.sort-item .txt{flex:1 1 300px}
.sort-item .why{flex-basis:100%;font-size:14px}
.chip{padding:7px 12px;border-radius:20px;border:1.5px solid var(--navy2);background:#fff;font:inherit;font-size:14px;cursor:pointer}
.chip.right{background:var(--ok);border-color:var(--ok);color:#fff}
.chip.wrong{background:var(--bad);border-color:var(--bad);color:#fff}
.tip{border-left:5px solid var(--gold);background:#fffaf0}
.q{margin:0 0 6px;font-weight:600;font-size:18px}
.qnav{display:flex;justify-content:space-between;margin-top:18px}
.score{font-size:56px;font-weight:800;color:var(--navy)}
.pass{color:var(--ok)}.fail{color:var(--bad)}
.review li{margin:10px 0}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:13px;font-weight:600}
.badge.ok{background:#dcfce7;color:#166534}.badge.no{background:#fee2e2;color:#991b1b}.badge.mid{background:#fef3c7;color:#92400e}
.cert{background:#fff;border:10px double var(--navy);padding:44px 40px;text-align:center;border-radius:6px}
.cert h1{font-size:34px}.cert .name{font-size:32px;font-family:Georgia,serif;color:var(--navy2);margin:14px 0}
.cert .small{font-size:13px;color:var(--muted)}
@media print{.top,.foot,.noprint{display:none!important}main{padding:0}.cert{border-width:8px}}
@media (max-width:600px){h1{font-size:24px}.card{padding:16px}.who{display:none}}